# CrazyPhone vs Second Phone Number

The clearest difference is in-app purchases: CrazyPhone at none against Second Phone Number's 10. Second Phone Number's advantage is update cadence (weekly vs every 4 months) and iOS requirement (13.4 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Second Phone Number sells 10 one-off in-app purchases. CrazyPhone asks for nothing beyond the download.

CrazyPhone ships an update every 4 months, Second Phone Number weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | CrazyPhone | Second Phone Number |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/crazyphone/id1562806486/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 52.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | — |
| Size | 115 MB | 28 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [CRAZY TELECOMMUNICATIONS PTY LTD](https://appshunter.io/developer/1562806488) | [2ND SIM Limited](https://appshunter.io/developer/1787170685) |

## What reviewers say

### CrazyPhone

[App page](https://appshunter.io/ios/app/crazyphone/id1562806486)

Communicate with your existing account using this app. It offers free calling and texting between users, along with free file sharing capabilities. Enjoy seamless communication without additional costs.

**Highlights:** Free calling between app users, Free texting, Free file sharing, Utilizes existing account

**In-app purchases:** none


### Second Phone Number

[App page](https://appshunter.io/ios/app/second-phone-number-2nd-sim/id6739813088)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| €1.69 | $1.99 | one-time |
| €1.99 | $1.99 | one-time |
| $1.49 | $1.99 | one-time |
| €2.49 | $2.99 | one-time |
| €4.49 | $4.99 | one-time |
| $4.99 | $4.99 | one-time |
| Virtual Number | $4.99 | one-time |
| $5.00 | $5.00 | one-time |
| €7.49 | $7.99 | one-time |
| €10.49 | $9.99 | one-time |


## Frequently asked questions

### Is CrazyPhone free?

CrazyPhone is free to download, with no in-app purchases.

### Is Second Phone Number free?

Second Phone Number is free to download, with in-app purchases available.

### Do CrazyPhone or Second Phone Number have ads?

Neither CrazyPhone nor Second Phone Number shows ads.

### Which is updated more often, CrazyPhone or Second Phone Number?

CrazyPhone ships an update every 4 months, and Second Phone Number weekly. Most recently, CrazyPhone was updated on November 3, 2026 and Second Phone Number on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*